Self-cleaning oil burner



April 3, 1928. 1,664,967

' O. CHRISTENSEN SELF CLEANING oIL BURNERv Filed Feb. 5, 1926 1 W -1-Rl\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ Witnems Patented Apr. 3, 1928.

OSCAR CHRIST MARYLAND',

CORPORATI 'Iheinv ing or pu nient and from.

ENSEN, OF BALTIMORE ON, OF BALTIMORE, IVARZLAND, A CORPORATION 0FMARYLAND.

l C E.

ASSIGNOR' T0 LOCKE INSULATOR SELF-CLEANING OIL BURNER.

appiicaiion ined February 3,

ention il rifying oth er solid liquids by The object of the inventiostated, is position in a position directed liquid therethrough, thstructed and larranged ter in the liquid deposited stead of passingliquid.

to provide means a within a conduit, pipe the 'flow of e device being socons toward will eddy upon the end of An important object ofthe toprovide a device of this character which may be inserted or in fact anywithin an oil liquid line and elates to devices for cleanieinovingsediforeign lmatter tiiercn, generally dapted for interoi the like thatthe foreign matabout and. be the device in-` througli it alongwith theinvention 'is or gas line, employed in combination with means racting toconduct the liquid condition which will resul thereto in a more or lessswirl or eddy t in depositing the foreign so as to produce a turbulentmatter upon the exterior of the end of the device.y

A lmore a vdevice of larl'y well fuel lines specific object is theadapted provision of this character which is particufor use inconnection with such as the oil pipe leading to the furnaces or thelike, these possible uses being mentioned only by way of illustration asthere sir-ed as to the exact in ployinent.

vision of is no li initation deode lor place of eni- Another object ofthe invention is the proa device of this character which osition`provided the active end is directed toward the current or flow ofliquid.

attainment of the foregoing and To the ent other objects and advantagessuch as sinicheapness, efficiency and the general of the art, theinvention consists in the details of construction and the arrangementand combination o hereinafter claimed, and

more fully illustrated in the ing drawing in which:

Figure a liquid 1 is conducting line described f parts to be andaccompanya longitudinal section through showing the vice interposedtherein and acting in coniand modificati on in which a spir binationwith a right angle bend or elbow,

showing a al approach 1926. Serial No. 85,772.

Referring to the drawings in detail, I have shown the device ascomprising an elongated pipe or tubular member 1 which may be of anydesired length and diameter, depending upon the particular place whereit is tobe used. rlhis tubular member is of course provided'ywith a boreorv passage 2 and has one end 3 of conical shape and closed. except fora central orifice 4 of relatively small diameter as compared with thetubular ineinber itself. Near the conical end, the tubular member 1 ispreferably threaded as indicated at 5 and the other endiis representedas threaded at 6 in order that the device may be mounted in or connectedwith a conduit or pipe line. v I

In both figuresv the tubular member 1 kis shown as having its threadedend 6 screwed into a pipe 7 and its other end screwed into a pipesection 8. While it is specified that screw threads constitute theconnecting means, it should be distinctly understood that any equivalentmeans may be provided instead, if preferred.

I have discovered that it is advisable to employ means in combinationwith the `device for conducting liquid theretoin a turbulent condition.It is ofcourse possible to accomplish this in different ways, probablythe simplest of which is to providea bend in the pipe line in advance ofand comparatively close to the device. InFigure l I have disclosed anelbow 9 connected with the pipe section or member 8 and of courseconnected with the supply pipe 1() through which the liquid passes, theiinpingen'ient of the liquid against the elbow creating suiiicientdisturbance that an eddy will be formed about the conical end 3 of thedevice, the particles of grit,l sediment or other foreign solid matterbeing, of course, thrown outwardly by centrifugal force and accumulatingat the outside of the conical end instead of passing through the centralorifice Il.

In lieu of using the elbow, I may interpose between the line 10 and thedevice, a spiral feed member 11 which may, in actual practice, consistof a suitable length of pipe provided internally with one or more flutesor spiral ribs 12 which will actvto impart a whirling motion to theliquid as it ap- Vattaching or claim:

proaches the conical end of the tubular member. q The effect is the samein either instance and actual experiment has demonstrated that theliquidpassing t rough the device is free` In the course of time, whenthe accumulation upon `the conical end becomes excessive, it is ofcourse necessary to remove it but thisis an extremely simple matter andone which may be attended to very readily. Y

While I have shown and described the device simply in combination with aturbulencey producing meansand have not illustrated any particulardevice with which the structure may be used, it Will be apparent thatitcould be used in the oil feed line to .a furnace and when so used itwill act to prevent clogging of the burner or burners.` sameis true ifthe device is employed in` advance of the caibureter of a motor or the 1ture of the turbulenceproducing means thereadjacent, to Widen the andincrease the ac aptability provided such variations constitute no del;Liquid purifying means comprising the combination of a tubular memberinterposed in a liquid conduit and having its end toward the liquidcurrent provided with a central orifice of relatively small diameter ascompared with the tubular member itself, the remainder of said end beingiinperforate, and means located in advance of said tubular member forproducing turbulence of the liquid.

A liquid purifying device comprising a tubular member interposed in aliquid conduit and having its end toward the current tapered and formedwith av single, cent-ral relatively small orifice as compared with thediameter of the tubular member itself, the remainder of said end beingimperforate and smooth. y

3. liquid purifying device comprising tubular member duit and having its'end tapered to a at its apex` With vthe combination lwith a liquidorifice as compared with the diameter of the tubular member itself, andmeans interposed in the conduit in advance of said tubular member forproducing turbulence of the liquid. y

Ll. Aliquid purifying device comprising a tubular member interposed ina. liquid conduit and having its end toward the current taperedandformed Wit-li a single, central relatively small orifice ascon'ipared with the diameter of the tubular member itself, and meansarranged in the conduit in advance of said tubular member for creatingan eddy -current about the tapered end of the tubular member. n

5. .A liquid purifying device comprising conduit, of a ai' member, andmeans in theconduit in ad` vanceof and adjacent said tubular memberfordiverting the liquid from a straight course whereby to produce aneddy current about the conical ber. n y

6. Liquid purifying means comprising the combination with a conduit, ofa tubular member interposed therein 4 end opposing the flow of liquid ofconical shape to define an annular space aboutfsaid end and between itand the WallV of the conduit, said conical end being formed at its andcausing the sameto iinpinge against the imperforate portion of saidconical end. Y p

7. Liquid purifying means comprising the combination with a. conduit,

duit, saidv conical end apex with ber, and means advance of said tubularmemberfor swirling the liquid and causing the same `to iinpinge againstthe iinporforate port-ion of said conical end, said means comprisingspiral ribs on f the interior of the conduit.

In testimony Wliereofl alix my signature.

osoiin cHnis'iiaivsniv.

end of the tubular mem-V and havin g' its

